As this packet goes through the network, it arrives at routers that sit on the path between the packet's origin and its destination. Time to live (TTL) - is a value specified inside of a packet that is set when the packet is created (usually to 255) that tells how long the packet can be left alive in a network. If client fails to send any information to server in a specified time, server simply drops this connection as it thinks that client is no longer there to communicate with it (why wasting resources meaninglessly). Once the connection between server and client has been established, client must periodically inform server that it is still there by sending information to that server. Request timeout - as in the previous case where client wasn't willing to wait for response from server for too long, server is not willing to keep unused connection alive for too long either. So if there is still no response from the server after X seconds, your browser will 'give up' on waiting, otherwise it might get stuck waiting for eternity.
What happens is that your browser starts to listen for a response message from that server but this response may never arrive for various reasons (e.g.
Suppose that you navigate your browser (client) to some website (server). I will try to answer it a little bit more informally.Ĭonnection timeout - is a time period within which a connection between a client and a server must be established.
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